EP4085205A1 - Ensemble roue menante - roue menee pour equiper un dispositif de transmission - dispositif de transmission comportant un tel ensemble et procede de conception associe - Google Patents
Ensemble roue menante - roue menee pour equiper un dispositif de transmission - dispositif de transmission comportant un tel ensemble et procede de conception associeInfo
- Publication number
- EP4085205A1 EP4085205A1 EP20830161.4A EP20830161A EP4085205A1 EP 4085205 A1 EP4085205 A1 EP 4085205A1 EP 20830161 A EP20830161 A EP 20830161A EP 4085205 A1 EP4085205 A1 EP 4085205A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- dynamic stiffness
- assembly
- driven
- driving wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000012938 design process Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
Definitions
- the field of the present invention is that of equipment for the mobility of goods or people. It relates in particular to motor vehicles with thermal or electric engines, or hybrid vehicles.
- the invention applies to any traction system: thermal, hybrid and electric. It relates in particular to commercial vehicles, trucks and heavy goods vehicles, construction machinery, agricultural machinery.
- the invention also applies to soft mobility devices such as electric bicycles, electric scooters or droids.
- the vibrations produced by the transmissions come from the meshing process and from geometry deviations and elastic deformations of the gears.
- the aim of the present invention is therefore to respond at least in part to the needs described above.
- the invention relates to a driving wheel - driven wheel assembly for equipping a transmission device, the assembly comprising a first wheel, called the driving wheel, having a first dynamic stiffness, a second wheel, called the driven wheel. , exhibiting a second dynamic stiffness, such that the first dynamic stiffness and second dynamic stiffness exhibits a ratio greater than or equal to 1.5.
- wheel should be understood in “driving wheel” and “driven wheel” in a broad sense. This is for example a driving pinion, a driven pinion or a differential.
- driving wheel and “driven wheel” in a broad sense. This is for example a driving pinion, a driven pinion or a differential.
- the invention makes it possible to propose what the stiffnesses on the driving wheel side and on the driven wheel side should be in order to have a reduction in noise.
- the vibration phenomena at the gear frequency are determined by the static transmission error (STE) and by the dynamic stiffness of the driving wheel - and driven wheel in contact.
- static transmission error under load (STE) is the main source of vibration in a transmission.
- the vibration of the driving wheel / driven wheel gears exhibits a maximum when the dynamic stiffness of the driving wheel and the dynamic stiffness of the driven wheel are close to each other.
- the first dynamic stiffness and second dynamic stiffness it is advantageous for the first dynamic stiffness and second dynamic stiffness to have a ratio greater than or equal to 1.5.
- the ratio is in particular defined by the first dynamic stiffness divided by the second dynamic stiffness.
- the ratio is defined by the second dynamic stiffness divided by the first dynamic stiffness.
- the ratio is greater than or equal to 2, or even 2.5.
- the subject of the invention is a transmission device comprising at least two wheels forming a driving wheel - driven wheel assembly as described above.
- the device comprises in particular an electric machine which may for example be a synchronous electric machine with permanent magnets operating at low voltage, that is to say 48 volts.
- the transmission device may include one or more driving wheel - driven wheel assemblies as described above.
- the subject of the invention is a method of designing a driving wheel - driven wheel assembly for an electric machine as described above.
- the method according to the invention comprises at least one step of calculating the ratio between a first dynamic stiffness of the first wheel and a second dynamic stiffness of the second wheel.
- the first dynamic stiffness is previously deduced from a measurement of the inertance of the first wheel and / or the second stiffness dynamic is deduced from a measurement of the inertance of the second wheel.
- This step includes in particular the comparison of the ratio with a predefined value,
- the method may further include a step of calculating the product of the first and second dynamic stiffness divided by their sum.
- the dynamic stiffness of the first wheel, respectively second wheel, is related to G inertance by the relation
- the first wheel has a first series of characteristics and / or the second wheel has a second series of characteristics.
- the method further comprises a step of modifying at least one of the characteristics of the first series or of the second series.
- the first series of characteristics and / or the second series of characteristics are for example chosen from a number of teeth of the toothing, a width and a thickness of the toothing, a diameter and a Young's modulus of the corresponding wheel, a thickness d 'a veil of the wheel, ...
- FIG. 1 is a general perspective view of a transmission device according to the second aspect of the invention.
- FIG. 2a is a schematic illustration of an assembly according to the first aspect of the invention
- Figure 2b is a schematic illustration of the first and second dynamic stiffnesses of the assembly of Figure 2a
- the two-speed transmission device T of FIG. 1 comprises a primary shaft 1 which is coupled to the output shaft of an electric machine M.
- This coupling is constant velocity and can be any type of mechanical coupling between two shafts. , such as for example a coupling with splines.
- the transmission device T also comprises a secondary shaft 2 and a tertiary shaft 3.
- the tertiary shaft 3 is able to be connected to a differential D which is itself connected to the wheels R1, R2 of the vehicle.
- the function of the differential D is to turn the wheels R1, R2 of the vehicle at different speeds.
- a first driving wheel - driven wheel assembly 10 corresponding to the first speed comprises a driving wheel corresponding to a first driving pinion 11 arranged on the primary shaft 1 and a driven wheel corresponding to a first driven pinion 12 arranged on the secondary shaft 2.
- the first drive pinion 11 and the first driven pinion 12 mesh continuously.
- a second driving wheel - driven wheel assembly 20 corresponding to the second speed comprises a driving wheel corresponding to a second driving pinion 21 arranged on the primary shaft 1 and a driven wheel corresponding to a second driven pinion 22 arranged on the secondary shaft 2
- the second drive pinion 21 and the second driven pinion 22 mesh permanently.
- the first drive pinion 11 and the second drive pinion 21 are fixedly mounted on the primary shaft 1.
- the first driven pinion 12 and the second driven pinion 22 are mounted loose on the secondary shaft 2 by means of needle bearings, that is, they can rotate relative to the secondary shaft 2.
- a third driving wheel - driven wheel assembly 30 comprises a driving wheel corresponding to a third driving pinion 31 arranged on the secondary shaft 2 and a driven wheel corresponding to a third driven pinion 32 arranged on the tertiary shaft 3.
- the third driving pinion 31 is fixedly mounted on the secondary shaft 2 and the third driven pinion 32 is fixedly mounted on the tertiary shaft 3.
- the third driven pinion 31 is disposed axially between the first driven pinion 12 and the second driven pinion 22.
- the third driven pinion driving 31 and the third driven pinion 32 mesh permanently.
- a fourth driving wheel - driven wheel assembly 40 corresponding to a differential assembly D comprises a driving wheel corresponding to a driving pinion 41 arranged on the tertiary shaft 3 and a driven wheel 42 corresponding to the input of the differential D.
- the driving pinion 41 is fixedly mounted on the tertiary shaft 3.
- the driving pinion 41 and the driven pinion 42 mesh permanently.
- the four driving wheel - driven wheel assemblies 10, 20, 30, 40 are oriented in a parallel manner.
- the three shafts 1, 2, 3 are oriented in parallel.
- the wheels of the various pinions 11, 12, 21, 22, 31, 32, 41, 42 have straight teeth. As a variant, these wheels can have oblique, helical or herringbone teeth.
- At least one, advantageously the four assemblies 10, 20, 30, 40 form the driving wheel-driven wheel assemblies according to the invention.
- the illustrated transmission device thus comprises four sets according to the invention. This number is not limiting of the invention.
- FIG. 2a schematically illustrates a drive wheel - driven wheel assembly 50 comprising a driving wheel 51 and a driven wheel 52 between which is imposed a static transmission error (STE) S.
- STE static transmission error
- ki and k2 are dynamic stiffnesses at the point of contact between the driving wheel and the driven wheel.
- the dynamic stiffnesses ki and k2 in particular take into account the resonance / antiresonance effects.
- the apparent stiffness (ki x k2) / (ki + k2) is calculated.
- FIG. 3 illustrates the inertance of the driving wheel (hatched curve) and the inertance of the driven wheel (continuous curve) measured as a function of the frequency.
- the inertance is expressed here in ms -2 ⁇ N -1 and the frequency f in Hz.
- a ratio R between the first dynamic stiffness and the second dynamic stiffness greater than or equal to 1.5, in particular greater than or equal to 2, or even 2.5 makes it possible to advantageously reduce the vibrations below the desired threshold.
- a first series of characteristics Fi relating to the driving wheel is for example chosen from a number m of teeth, a width h and a thickness ei of the toothing 75, a diameter di and a Young's modulus yi of the first wheel and / or a thickness hi of a web 72 of said wheel, a radius gi of the hub 70 of said driving wheel.
- a second series F2 of characteristics F2 relating to the driven wheel is for example chosen from a number m of teeth, a width I2 and a thickness e2 of the teeth, a diameter d2 and a Young's modulus y2 of the second wheel and / or a thickness h2 of a web 75 of said wheel, a radius g2 of the hub 70 of said driven wheel.
- the characteristics of the first and second series are distinctive physical characteristics of the first, respectively second wheel.
- the method according to the invention advantageously comprises a step during which at least one of the characteristics of the first series and / or of the second series is varied and the new inertance h, I2 of the corresponding wheel is measured from which the value is deduced. corresponding dynamic stiffness.
- the invention is not limited to the examples illustrated and applies to any traction system: thermal, hybrid and electric.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1915803A FR3105810A1 (fr) | 2019-12-31 | 2019-12-31 | Ensemble roue menante - roue menée pour équiper un dispositif de transmission - Dispositif de transmission comportant un tel ensemble et Procédé de conception associé |
| PCT/EP2020/086598 WO2021136669A1 (fr) | 2019-12-31 | 2020-12-17 | Ensemble roue menante - roue menee pour equiper un dispositif de transmission - dispositif de transmission comportant un tel ensemble et procede de conception associe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4085205A1 true EP4085205A1 (fr) | 2022-11-09 |
Family
ID=69903609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20830161.4A Pending EP4085205A1 (fr) | 2019-12-31 | 2020-12-17 | Ensemble roue menante - roue menee pour equiper un dispositif de transmission - dispositif de transmission comportant un tel ensemble et procede de conception associe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4085205A1 (fr) |
| CN (1) | CN114901964B (fr) |
| FR (1) | FR3105810A1 (fr) |
| WO (1) | WO2021136669A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3131711A1 (fr) * | 2022-01-08 | 2023-07-14 | Valeo Embrayages | Systeme de propulsion pour vehicule electrique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ303995B6 (cs) * | 2008-04-25 | 2013-08-07 | Sew Eurodrive Cz S. R. O. | Diferenciální prevodové zarízení s vyrovnávacím ústrojím |
| FR2958883B1 (fr) * | 2010-04-16 | 2014-02-14 | Renault Sa | Systeme de motorisation hybride |
| FR3021594B1 (fr) * | 2014-06-02 | 2017-12-01 | Ifp Energies Now | Dispositif de transmission de vitesse pour le deplacement d'un vehicule automobile, notamment d'un vehicule motorise a deux-roues. |
| US10473195B2 (en) * | 2017-06-06 | 2019-11-12 | GM Global Technology Operations LLC | Continuously-variable transmission |
-
2019
- 2019-12-31 FR FR1915803A patent/FR3105810A1/fr active Pending
-
2020
- 2020-12-17 CN CN202080091561.0A patent/CN114901964B/zh active Active
- 2020-12-17 WO PCT/EP2020/086598 patent/WO2021136669A1/fr not_active Ceased
- 2020-12-17 EP EP20830161.4A patent/EP4085205A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN114901964B (zh) | 2024-02-06 |
| FR3105810A1 (fr) | 2021-07-02 |
| CN114901964A (zh) | 2022-08-12 |
| WO2021136669A1 (fr) | 2021-07-08 |
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